As the satellites are above you, GNSSGNSS —Global Navigation Satellite System aerials are mounted on top of the aircraft.

However, pseudo-satellites, or pseudolites, are ground stations that mimic real GPSGPS —Global Positioning System (USA) satellites in an area to enhance and improve the quality of the GPSGPS —Global Positioning System (USA) fix close to an airfield. To receive the signal, the aircraft must be fitted with a ground facing antenna.

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Where should aircraft aerials for using GNSSGNSS —Global Navigation Satellite System be mounted?
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